Nonconformities occur when sedimentary rocks are deposited on top of uplifted and eroded metamorphic or igneous rocks true or false

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

A(n) is a molecule influences the way that a molecule reacts.